fix bug that saved optimal model path in test_analyzer_save_model con… (#17555)

* modify saved model path in analyzer_save_model.cc test=develop

paddle/fluid/inference/tests/api/CMakeLists.txt

@@ -86,7 +86,7 @@ inference_analysis_test(test_analyzer_small_dam SRCS analyzer_dam_tester.cc
         EXTRA_DEPS ${INFERENCE_EXTRA_DEPS}
         ARGS --infer_model=${DAM_SMALL_INSTALL_DIR}/model --infer_data=${DAM_SMALL_INSTALL_DIR}/data.txt --max_turn_num=1)
 
-# save model
+#save model 
 inference_analysis_api_test(test_analyzer_save_model ${DAM_SMALL_INSTALL_DIR} analyzer_save_model_tester.cc)
 
 # chinese_ner

paddle/fluid/inference/tests/api/analyzer_dam_tester.cc

@@ -321,7 +321,6 @@ TEST(Analyzer_dam, compare_determine) {
   CompareDeterministic(reinterpret_cast<const PaddlePredictor::Config *>(&cfg),
                        input_slots_all);
 }
-
 // Save optim model
 TEST(Analyzer_dam, save_optim_model) {
   AnalysisConfig cfg;

paddle/fluid/inference/tests/api/analyzer_save_model_tester.cc

@@ -34,7 +34,8 @@ TEST(Analyzer, save_model) {
   AnalysisConfig cfg;
   SetConfig(&cfg);
   cfg.SetModel(FLAGS_infer_model + "/__model__", FLAGS_infer_model + "/param");
-  std::string optimModelPath = FLAGS_infer_model + "/saved_optim_model";
+  //  ensure the path being unique
+  std::string optimModelPath = FLAGS_infer_model + "/only_for_save_model_test";
   mkdir(optimModelPath.c_str(), 0777);
   SaveOptimModel(&cfg, optimModelPath);